Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150
Sign in using an external account
Register Forgot Password?


1997 - 2003 F150 1997-2003 F150, 1997-1999 F250LD, 7700 & 2004 F150 Heritage SPONSORED BY:

Welcome to Ford-Trucks Forums!
Welcome to Ford-Trucks.com.

You are currently viewing our forums as a guest, which gives you limited access to view most discussions and access our other features. By joining our community you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is fast, simple and absolutely free so please, join the Ford-Trucks Forums community today!





 
Reply
 
 
 
 
LinkBack Thread Tools Search this Thread
  #1  
Old 01-07-2007, 05:02 PM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
I need help with error code PO305

I got a 99 150 4.2 V6 249,102 miles well maintained. It's showing error code PO305. I've replaced plugs, wires, coil pack, EGR, PCV and fuel filter. I'm at a loss. I burn good fuel, use injector cleaner every 2nd or 3rd tank and most of my miles are on the highway. The only thing I can figure is the injectors. The first time I had the error code checked it showed 1 and 3 misfiring. Now it's #5 only. It only stumbles at LOW RPM too. Now also the last two years or so the catalytic converter has been making a rattling sound but I think it's the ceramic inside. I WOULD TRUELY APPRICIATE ANY SUGGESTIONS!!
Tommy
Reply With Quote
  #2  
Old 01-07-2007, 07:07 PM
BOSSMAN302 BOSSMAN302 is offline
New User
 
Join Date: Dec 2006
Posts: 11
BOSSMAN302 is starting off with a positive reputation.
Wow High Mileage, could be anything I would start with a compression check of cylinder 5, if ok possible injector,, Good luck
Reply With Quote
  #3  
Old 01-07-2007, 07:28 PM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
Yea it is, I'm going to try for 1,000,000 miles. I didn't think I would ever own a V-6 PU but it's a damn good one. I kinda think it's an injector too but I'm not smart enough to change or check it, I don't think. It would kill me to have too PAY somebody to work my truck too.
Thanks

Last edited by misfit9; 01-07-2007 at 07:31 PM.
Reply With Quote
  #4  
Old 01-07-2007, 07:41 PM
Wilber15 Wilber15 is offline
Elder User
 
Join Date: Nov 2001
Location: Duluth, MN
Posts: 892
Wilber15 is starting off with a positive reputation.
Well swap injectors on 5 and 6 and see if it changes the misfire cylinder. This isn't really practiced as far as I know. But I would assume you have no ways to do an injector balance test? Check the plug to see if you might have bumped it closing the gap and causing it to not spark correctly. Compression could be an issue, so if u have a compression tester you could try that. Do a cranking, idle and higher rpm check. Higher rpm's usually don't show ring blow by because the piston is moving to fast to allow it to leak.....
__________________
If it ain't broke.....change stuff till it is!

Ford Dealership Tech...
Ford Diesel Apprentice...
Reply With Quote
  #5  
Old 01-07-2007, 07:53 PM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
Thanks Wilber15!!
Reply With Quote
  #6  
Old 01-12-2007, 10:35 PM
firebug8109 firebug8109 is offline
Junior User
 
Join Date: Apr 2006
Location: Funston, Ga
Posts: 51
firebug8109 is starting off with a positive reputation.
misfit9, this may help, may not. I have a 2000 F150 4.6L that i just got fixed...same type problem. Mine ended up being a couple broken wires in the wiring harness to the injectors. The only way i found this is i ran a "datastream" test on my truck with my diagonostic center. I had a fault on that injestor. The best way to test the injector to see if its bad is to go to advanced auto parts and purchase a node set to check injectors. unplug that injector and crank the truck. Insert the node and see if it blinks. If it does, then try a new injector. I bought the node pack for $20.00. This will tell you alot. Good luck!

Last edited by firebug8109; 01-12-2007 at 10:38 PM. Reason: need to add more information
Reply With Quote
  #7  
Old 01-12-2007, 10:47 PM
firebug8109 firebug8109 is offline
Junior User
 
Join Date: Apr 2006
Location: Funston, Ga
Posts: 51
firebug8109 is starting off with a positive reputation.
forgot to add this: insert the node into the connector that you unplugged from the injector. You can also use a long screwdriver to listen for a loud....LOUD clicking sound coming from the injector. You may hear a clicking sound from the other injectors....it will be kind of soft. This is sound that is being transfered down the fuel rail. You will know if the injector is working when you listen to it and reference it to a couple of others. You can slick on the link below and find what pin number on the PCM controls the grounding for the injector, if the node does not light.

http://fordfuelinjection.com/index.php?p=88

This is for a 4.6, but i think the pin numbers are the same for both cars and trucks.

again, good luck
Reply With Quote
  #8  
Old 01-13-2007, 12:32 AM
thehawk789 thehawk789 is offline
Senior User
 
Join Date: Nov 2006
Posts: 252
thehawk789 is starting off with a positive reputation.
yup, loud tick is bad injector. If you get nothing... buy the appropriate noid light, plug it in, if it blinks you have good wiring, bad injector. No blinking- bad wiring. My money is on the bad injector, it happens. No idea on how to change injectors either.
As long as you have about oh 110 PSI minimum you're ok. I bet your truck has more like 120-125 PSI (each) at the least, if you do a compression test.
Reply With Quote
  #9  
Old 01-13-2007, 09:01 AM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
Thanks

Thanks Guys, I really appriciate the input.
Reply With Quote
  #10  
Old 01-15-2007, 10:59 PM
fmerkl fmerkl is offline
New User
 
Join Date: Oct 2006
Posts: 14
fmerkl is starting off with a positive reputation.
I have 256000km on my 4.2l and it still runs like a top !!
Frank
Reply With Quote
  #11  
Old 01-16-2007, 07:38 AM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
wow

I thought i had a lot of miles on mine. I'm going to try to keep it and go for a million, if it don't start to nickel and dime me to the poor house. Does or has you catalytic converter rattled. Mine has been for a couple of years now. The fuel mileage and performance is good but the rattling has begun to get on my last nerve.

Thanks Frank!!
Reply With Quote
  #12  
Old 01-16-2007, 08:57 AM
firebug8109 firebug8109 is offline
Junior User
 
Join Date: Apr 2006
Location: Funston, Ga
Posts: 51
firebug8109 is starting off with a positive reputation.
mine is still all original. the only exhaust work i have had done to mine was to take the Y pipe out and run a dual in/dual out flowmaster. and thats it. cats are all still original. Ya got to love these trucks!!!
Reply With Quote
  #13  
Old 01-16-2007, 09:12 AM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
I really do. When this design we are calling now the Heritage came out I didn't like it much kinda like the NOW F-150. My POP bought a 04 Lariat with all the bells and whistles, and I declare I like mine better. It rides, handles and gets MUCH better fuel mileage. His has the 5.4 and I know it's the difference but I don't pull ANYTHING, just air. I can get 25 on the road all day long. The best he can do is about 18.5.
Thanks for the help!!!
Reply With Quote
  #14  
Old 01-16-2007, 09:25 AM
firebug8109 firebug8109 is offline
Junior User
 
Join Date: Apr 2006
Location: Funston, Ga
Posts: 51
firebug8109 is starting off with a positive reputation.
thats pretty good. My 97 is an extended cab, long wheel base. It has the full 8 foot bed on it. it has a 30 gallon fuel tank, and i can go almost 670 miles on the open road with it before I have to stop for gas. I LOVE that larger fuel tank. My parents live like 640 miles from me, and I can stop and fill up just before I get on the interstate, and the low fuel light will come on as I'm heading to get gas the next day. I am planning on driving mine for another 10 years. I love the ride of that ext. cab, long bed. I just love my old truck. Best money I ever spent.
Reply With Quote
  #15  
Old 01-16-2007, 09:39 AM
misfit9 misfit9 is offline
New User
 
Join Date: Jan 2007
Location: Charlotte,NC
Posts: 11
misfit9 is starting off with a positive reputation.
Mine is a 99 ext cab short bed with the 25 gal tank. Did Ford offer the 30 gal tank in 97 or did you add it? Yours is a V-8 though, right??!! Mine is the V-6 and all they offered in 99 was the 25 gal. Yea if mine quite for good today it has been the best one I have ever had. I have had Rangers, Big Bronco's and little Bronco's and the F-150's all my life. I'm 41yo and the only car I've ever had was a 67 Fairlane. It was my first ride. DAMN I wish I still had it. It came with a 289, 3 speed on the column and I lucked out and found a 66 cross bolt side oiler 427 and stuffed in it and MAN MAN what a ride it was. It's a wonder I ain't dead.
Reply With Quote
Old 01-16-2007, 09:39 AM
 
 
 
Reply

Go Back   Ford Truck Enthusiasts Forums > Newer Light Duty Trucks > 1997 - 2003 F150

Tags
150, 2002, 2005, 54, blazer, code, codepo305, error, f150, ford, obd, odc, po305, po305code, trouble

Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On
Trackbacks are On
Pingbacks are On
Refbacks are On

Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
2008 F250 SD Cooling System Levels ItsABeautClark Super Duty & Heavy Duty 8 08-17-2010 02:01 AM
88 F-350 for sale oly1 Pre-Power Stroke Diesel (7.3L IDI & 6.9L) 8 02-22-2007 10:39 PM
1979 F150 460 Efi SteelRollin Big Block V8 - 385 Series (6.1/370, 7.0/429, 7.5/460) 34 10-30-2006 02:25 PM
1975 F250 Camper Special 2wheel drive Toyguy9 1973 - 1979 F-100 & Larger F-Series Trucks 3 03-26-2006 07:35 AM
How should I rebuild my inline six? fordmtnman Ford Inline Six, 200, 250, 4.9L / 300 10 05-25-2005 09:21 AM



All times are GMT -5. The time now is 11:42 AM.


Powered by vBulletin® Version 3.8.7 AC1
Copyright ©2000 - 2014, Jelsoft Enterprises Ltd.
Advertising - Terms of Use - Privacy Statement - Jobs
This forum is owned and operated by Internet Brands, Inc., a Delaware corporation. It is not authorized or endorsed by the Ford Motor Company and is not affiliated with the Ford Motor Company or its related companies in any way. FordŽ is a registered trademark of the Ford Motor Company.

vbulletin Admin Backup